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<REFENTRY ID="SQL-DROPOPERATOR">
<REFMETA>
<REFENTRYTITLE>
DROP OPERATOR
</REFENTRYTITLE>
<REFMISCINFO>SQL - Language Statements</REFMISCINFO>
</REFMETA>
<REFNAMEDIV>
<REFNAME>
DROP OPERATOR
</REFNAME>
<REFPURPOSE>
Removes an operator from the database
</REFPURPOSE>
<REFSYNOPSISDIV>
<REFSYNOPSISDIVINFO>
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<DATE>1998-09-22</DATE>
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</REFSYNOPSISDIVINFO>
<SYNOPSIS>
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DROP OPERATOR <REPLACEABLE CLASS="PARAMETER">id</REPLACEABLE> ( <REPLACEABLE CLASS="PARAMETER">type</REPLACEABLE> | NONE [,...] )
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</SYNOPSIS>
<REFSECT2 ID="R2-SQL-DROPOPERATOR-1">
<REFSECT2INFO>
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<DATE>1998-09-22</DATE>
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</REFSECT2INFO>
<TITLE>
Inputs
</TITLE>
<PARA>
</PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
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<replaceable class="parameter">id</replaceable>
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</TERM>
<LISTITEM>
<PARA>
The identifier of an existing operator.
</PARA>
</LISTITEM>
</VARLISTENTRY>
<VARLISTENTRY>
<TERM>
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<replaceable class="parameter">type</replaceable>
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</TERM>
<LISTITEM>
<PARA>
The type of function parameters.
</PARA>
</LISTITEM>
</VARLISTENTRY>
</variablelist>
</REFSECT2>
<REFSECT2 ID="R2-SQL-DROPOPERATOR-2">
<REFSECT2INFO>
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<DATE>1998-09-22</DATE>
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</REFSECT2INFO>
<TITLE>
Outputs
</TITLE>
<PARA>
</PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
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<replaceable>status</replaceable>
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</TERM>
<LISTITEM>
<PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
<ReturnValue>DROP</ReturnValue>
</TERM>
<LISTITEM>
<PARA>
The message returned if the command is successful.
</PARA>
</LISTITEM>
</VARLISTENTRY>
<VARLISTENTRY>
<TERM>
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<ReturnValue>ERROR: RemoveOperator: binary operator '<REPLACEABLE CLASS="PARAMETER">id</REPLACEABLE>' taking '<REPLACEABLE CLASS="PARAMETER">type1</REPLACEABLE>' and '<REPLACEABLE CLASS="PARAMETER">type2</REPLACEABLE>' does not exist</ReturnValue>
</TERM>
<LISTITEM>
<PARA>
This message occurs if the specified binary operator does not exist.
</PARA>
</LISTITEM>
</VARLISTENTRY>
<VARLISTENTRY>
<TERM>
<ReturnValue>ERROR: RemoveOperator: left unary operator '<REPLACEABLE CLASS="PARAMETER">id</REPLACEABLE>' taking '<REPLACEABLE CLASS="PARAMETER">type</REPLACEABLE>' does not exist</ReturnValue>
</TERM>
<LISTITEM>
<PARA>
This message occurs if the specified left unary operator
specified does not exist.
</PARA>
</LISTITEM>
</VARLISTENTRY>
<VARLISTENTRY>
<TERM>
<ReturnValue>ERROR: RemoveOperator: right unary operator '<REPLACEABLE CLASS="PARAMETER">id</REPLACEABLE>' taking '<REPLACEABLE CLASS="PARAMETER">type</REPLACEABLE>' does not exist</ReturnValue>
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</TERM>
<LISTITEM>
<PARA>
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This message occurs if the specified right unary operator
specified does not exist.
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</PARA>
</LISTITEM>
</VARLISTENTRY>
</variablelist>
</LISTITEM>
</VARLISTENTRY>
</VARIABLELIST>
</REFSECT2>
</REFSYNOPSISDIV>
<REFSECT1 ID="R1-SQL-DROPOPERATOR-1">
<REFSECT1INFO>
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<DATE>1998-09-22</DATE>
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</REFSECT1INFO>
<TITLE>
Description
</TITLE>
<PARA>
The DROP OPERATOR statement drops an existing operator from the
database.
To execute this command you must be the owner of the operator.
</PARA>
<PARA>
The left or right type of a left or right unary
operator, respectively, may be specified as NONE.
</PARA>
<REFSECT2 ID="R2-SQL-DROPOPERATOR-3">
<REFSECT2INFO>
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<DATE>1998-09-22</DATE>
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</REFSECT2INFO>
<TITLE>
Notes
</TITLE>
<PARA>
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The <command>DROP OPERATOR</command> statement is a
<productname>Postgres</productname>
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language extension.
</PARA>
<PARA>
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Refer to <command>CREATE OPERATOR</command> for
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information on how to create operators.
</PARA>
<PARA>
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It is the user's responsibility to remove any access methods and
operator classes that rely on the deleted operator.
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</PARA>
</REFSECT2>
<REFSECT1 ID="R1-SQL-DROPOPERATOR-2">
<TITLE>
Usage
</TITLE>
<PARA>
Remove power operator <literal>a^n</literal> for <literal>int4</literal>:
</PARA>
<ProgramListing>
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DROP OPERATOR ^ (int4, int4);
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</ProgramListing>
<PARA>
Remove left unary operator <literal>!a</literal> for booleans:
</PARA>
<ProgramListing>
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DROP OPERATOR ! (none, bool);
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</ProgramListing>
<PARA>
Remove right unary factorial operator <literal>a!</literal> for
<literal>int4</literal>:
</PARA>
<ProgramListing>
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DROP OPERATOR ! (int4, none);
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</ProgramListing>
</REFSECT1>
<REFSECT1 ID="R1-SQL-DROPOPERATOR-3">
<TITLE>
Compatibility
</TITLE>
<PARA>
</PARA>
<REFSECT2 ID="R2-SQL-DROPOPERATOR-4">
<REFSECT2INFO>
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<DATE>1998-09-22</DATE>
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</REFSECT2INFO>
<TITLE>
SQL92
</TITLE>
<PARA>
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There is no <command>DROP OPERATOR</command> in <acronym>SQL92</acronym>.
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</PARA>
</refsect2>
</refsect1>
</REFENTRY>
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